Sickle-bar.



PATENTED SEPT. 13, 1904.

s. HAGAR. SIGKLE BAR. APPLICATION IiLED JAN. 19,1904.

N0 MODEL.

1 NFKWRWQR 0 0 15 Patented September 13, 1904.

PATENT OFFICE.

SMITH HAGAR, OF MASSIES MILL, VIRGINIA.

SlCKLE-BAR.

SPECIFICATION forming part of Letters Patent No. 770,006, datedSeptember 13, 1904,

Application filed January 19, 1904. Serial No. 189.664. (No model.)

To all whom it may concern:

Be it known that 1, SMITH HAGAR, a citizen of the United States,residing at Massies Mill, in the county of Nelson and State of Virginia,have invented certain new and useful Improvements in Sickle-Bars, ofwhich the following is a specification.

This invention relates to guard-fingers and finger-bars for harvesters,and particularly to a sickle or cutter bar having certain peculiaritiesaffording advantages over other bars of this class.

The object of the invention is to provide a sickle-bar of such novel andpeculiar construction and to form the shank of the sickles or cutters insuch manner that the latter may be attached to and released from the barwithout puncturing the bar or the shanks by setscrews, bolts, or thelike.

A further object of the invention is to provide a special locking-bar,operated in the sickle-bar, to lock the sickles to the sickle-bar and tounlock them, so that one or all of them are free to be removed asdesired or as occasion may demand.

In the accompanying drawings, forming part of this application, Figure 1is a top view ofthe sickle-bar with the sickles locked, showing indotted lines the locking-bar in unlocked position. Fig. 2isalongitudinal section taken on the line a a, Fig. 1, of part of thetwo bars and the sickles in locked position. Fig. 3 is a perspectiveview of part ofthe sicklebar with the locking-bar removed. Fig. 4 is adetail perspective view of the locking-bar, partly broken away. Fig. 5is a detail perspective view of one of the sickles. Fig. 6 is across-section on the line w m, Fig. 1.

The same numeral references denote the same parts throughout the severalviews of the drawings.

The sickle-bar 1 has a dovetail longitudinal groove 2, extending from ashoulder 3 to the opposite end of the bar. A series of transverse slots4, intersected by the said groove, is made through the sickle-bar, andthe latter has a gage-mark 5. The sickles 6 have shanks 7, one edge ofwhich is provided with a beveled notch 8 equal in width to the width ofthe bottom of the groove 2, and the shanks engage the bottom of the saidgroove, which is flush with the slots 4.

The locking-bar 9 has beveled sides to fit the groove 2, flush with thetop of the sicklebar 1, and a series of lugs 10, having beveled sides,depend from the locking-bar into the said groove and between the bevelededges of the notches of the sickle-shanks to lock the latter to thesickle-bar. The locking-bar lugs 10 are separated by spaces 11 of awidth equal to the width of the interval between the slots 4, so thatwhen the sickles are unlocked the lugs engage the edge of thesickle-shanks opposite the notches, which prevents the further outwardmovement of the locking-bar and leaves the sickle free to be removedfrom the sickle-bar. A countersunk set-screw 12 at each end of thelocking-bar prevents the latter from sliding, said bar having a cavity13 for a suitable hook to slide the bar.

It is obvious that the locking-bar cannot be removed from the sickle-baruntil all the sickles are removed, and in the event of disconnecting thetwo bars the locking-bar is slid endwise in the groove until its innerend registers with the gage-mark 5. Then the slots 4 and spaces 11 willbe found to register, so that the sickle-shanks may be inserted,whereupon the locking bar is pushed inwardly against 3, with the lugs 10engaging the notches 8 to lock the sickles in place.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A sickle-bar having a longitudinal groove intersecting a series oftransverse sickle-slots, sickles each having a notched stem, and a barslidable in the groove across the slots and having depending lugsengaging the said stems to lock and unlock the sickles.

2. The combination, with the sickles each having a stem provided with anedge notch, and the sickle-bar having transverse slots for the stems anda longitudinal groove, of a locking-bar having lugs engaging the notchesto lock the sickles, and working against the edge of the stems oppositethe notch to unlock the sickles and to limit the outward movement of thelocking-bar.

3. The combination, with the sickle-bar having transverse slotsintersected by a longitudinal groove, of the sickles each having a stemprovided with an edge notch, and a locking-bar held by the groove andhaving lugs to engage the notches and the opposite edge of the stemswhen in locked and unlocked position respectively.

4. The combination, with the sickle bar having a longitudinal grooveopen at one end and terminating in a shoulder, and the sickles eachhaving a stem one edge of which has a notch, of a locking-bar havinglugs to engage the notches when the bar engages said shoulder to stopthe inward movement of the locking-bar, the outward movement of thelatter being controlled by the engagement of the lugs with the otheredge of the said stems.

In witness whereof I hereunto set my hand in the presence of twowitnesses.

SMITH HAGAR.

Witnesses STEWART GILEs, WALTER NAPPER.

